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1. ### simplify fraction 1 /7 exponent - 1 ?

( 1 / 7)^(- 1 ) = 7. A negative exponent is defined as a reciprocal so that it fits in with the rules for exponents, one of which is: x^a * x^b = x^(a + b). x^ 1 * x^(- 1 ) = x^0 = 1 Hence x^(- 1 ) = 1 / x.

1 Answers · Education & Reference · 15/02/2010

2. ### Does 0.9999.... equal 1 ?

1 /3=0.33333... 3 x 0.3333...=0.999... 3 x ( 1 /3)= 1 Therefore: 0.999....= 1 It's just the nature of ...

9 Answers · Education & Reference · 23/10/2007

2x^2 - 3x + 1 = (2x - 1 )(x - 1 ) Notice that the terms on the left hand side of each... on the right hand side of each bracket are the factors of 1 (that is - 1 * - 1 = 1 ) and that 2x * (- 1 ) + x * (- 1 ) = -2x - x = -3x and that...

3 Answers · Education & Reference · 22/03/2009

4. ### [( 1 +cosx)/(sinx)]=- 1 ?

1 .[( 1 +cosx)/(sinx)]=- 1 cosecx + cotx = - 1 ...............( 1 ) [ 1 /sinx = cosecx and cosx/sinx = cotx] We know that cosec^2x - cot^2x = 1 ( it is a formula) so (cosecx + Cotx)(cosecx - cotx) = 1 ..................(2) Now from ( 1 ...

3 Answers · Education & Reference · 19/01/2011

5. ### Simplify 6 over square root 2 - 1 ?

√6 / (√2) - 1 multiply top & bottom by the conjugate of the bottom: √6(√2 + 1 ) / (√2 - 1 )(√2 + 1 ) = (√12 + √6) / (2 - 1 ) = 2√3 + √6 that's it! ;)

4 Answers · Education & Reference · 12/03/2012

6. ### 1 maths question! :) plz help.?

...to do this addition problem is to first add the whole numbers ( 1 and 2). Next add the fractions (3/8 and 1 /4). Doing so we...

3 Answers · Education & Reference · 05/12/2010

7. ### How do you solve a linear equation that has fractions for example 1 /4x- 1 ?

1 . make it = to 0 1 /4x- 1 =0 2. add 1 to both sides 1 /4x= 1 3. multiply the fraction by the reciprocal to get a whole number to both sides. (4) 1 /4x= 1 (4) 4. solve! x=4

4 Answers · Education & Reference · 15/12/2008

8. ### simplify (( 1 /x+h)-( 1 /x))/h?

(( 1 /x+h)-( 1 /x))/h [(x-x-h)/(x+h)]* 1 /h -h/h(x+h) - 1 /(x+h)

2 Answers · Education & Reference · 10/10/2012

9. ### What is 1 + 1 =?

1

16 Answers · Education & Reference · 14/03/2008

10. ### What is 1 - 1 =?

1

13 Answers · Education & Reference · 14/03/2008